A voxel-based approach in phased-array optimization for microwave hyperthermia

The problem of effective power delivery to a deep target by a near-field phased array has been addressed for application to oncological hyperthermia. Phased arrays are evaluated on the basis of their ability to deliver the largest fraction of the available power from generators to a tumor. Each voxel of the heated volume was considered as a target, a tumor being the union of some such voxels. Maps of efficiencies and an array factor have been produced for a head-neck volume. These maps may help in appreciating tumor heatability by the phased array.